Make initial ramdisk server work again

[perlun]

As noted, this is unfinished yet. Not trivial because of problems w/ floppy images:

vagrant@packer-debian-7:/vagrant/servers/block/initial_ramdisk$ mdir
 Volume in drive A has no label
 Volume Serial Number is B1A5-B4DA
Directory for A:/

GRUB         <DIR>     2011-11-15  12:28  grub
storm           431746 2015-05-21  20:25
servers      <DIR>     2013-06-21  20:57
        3 files             431 746 bytes
                            210 432 bytes free

~200 KiB is simply too small to be able to fit in any reasonable ramdisk. Even a 360k 5,25 floppy image wouldn't fit there. So either I have to make the floppy.image be 2.88m (by figuring out how to do that in mtools) or go the "right" way and replace floppy.image with a dynamically rebuilt ISO9660 CD .iso image instead. The latter is obviously the nicer way, but maybe (?) more work. The "hard" part is getting grub installed onto the .iso I think, but this must have been done by others before us... so there should be a recipe somewhere.

[perlun]

Seems to be rather cool now!

[boot] beginning of boot
[boot] Mounted the first available block service as //ramdisk.
[boot] Reading startup script...
[virtual_file_system] Mounting 20 at //ramdisk.
[boot] //ramdisk/config/servers/boot/startup not found.

This was fixed because of #37. The really nice part is that we can now have a much bigger initial ramdisk, maybe even large enough to fit a minimal Quake 1 installation? 😉 At least cluido, tetris, modplay etc etc should be no problem at all to fit now. If we want to use even more space, I'd suggest trying to implement an iso9660fs file system driver or something (but it also means we need an accompanying block server, so it's a bit of work - clearly doable but not something I will attempt this very moment).

[perlun]

Should be green now (there was an obvious error in the build process, so merging).